> Not trying to nit pick but wouldn't it be more accurate to say one can
> in part control flash/ambient light ratio to some degree
> by dragging the shutter and still use TTL flash ----or alter the
> flash/ambient by using the exp comensation dial.
> This is still very cool and the only OM that can do this. (drool)
Yes. No auto exposure of ambient.
> I don't see how one could obtain a Flash fill 2 stops below ambient
> using this TTL on the 3Ti, unless I misunderstand.
> AFAIK TTL fill was in in its infancy when this cam came out .
If I understand how this works, and my photos attempting it turned
out, so I guess it does, it looks something like this:
1. Meter and adjust the scene for ambient exposure. For argument sake,
let's say we're in open shade, so 1/ISO at F11 or equivalent. My film
speed is ISO 100, so, my exposure would be 1/60 at F16.
2. Adjust the exposure compensation dial to -2 stops.
3. Turn on flash and use the appropriate switch setting on the camera
(X, I think).
4. Fire away.
As the camera is manual exposure, we established and locked in the
exposure prior to doing the exposure compensation. As exposure
compensation has zero effect on the locked in exposure, nothing will
shift. When you take the picture, the flash fires "first-curtain".
When enough light hits the film, the camera will quench the flash, but
the ambient exposure continues on till the end of the shutter time.
So, essentially, we've lied to the camera.
We can also accomplish the same thing with any camera and flash
combination provided the flash has a built-in sensor. I've been doing
this for years with the Vivitar 285HV and Olympus T45 flash with the
E-1 (and OM system). However, with the E-1, I do apply another trick.
This is a trick that doesn't work so well with the DMC-L1, but
definitely the E-1 and E-3 are happy clams:
Set your flash to in-flash auto-exposure. Set the camera to
auto-exposure. For outdoor fill, derate the flash by your number of
stops (1 or 2) so it would otherwise underexpose the scene if it was
the sole source of light. For indoor flash, I set the flash power to
my normal exposure, but I have the exposure compensation in the camera
dialed down a couple of stops. If the flash doesn't fire, the scene
will underexpose by two stops, but with the flash firing, the
background drops down up to two stops (distance sensitive), but the
subject is properly exposed.
--
Ken Norton
ken@xxxxxxxxxxx
http://www.zone-10.com
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